Popularization of basic knowledge of gas holder

The main function of the gas holder is to collect, store, transport and distribute gas such as gas. The shape of the gas holder is generally cylindrical or multilateral cylindrical. Inside the gas holder is a piston plate that can move up and down and has a diameter equivalent to the tank body, which is used to regulate and maintain the gas pressure in the tank. Liquid is used as the sealing medium between the piston edge and the gas holder wall, wet seal with water as the medium and dry seal with lubricating oil as the medium. Due to the obvious advantages of dry seal gas holder, such as small floor area, long service life of the cabinet, constant exhaust pressure, and small bearing pressure of the foundation, it has gradually replaced the wet seal gas holder in recent years. Since the 1980s, with the improvement of manufacturing technology and construction level, dry-type gas holders have been widely used in China and play a leading role in the process of gas transmission and distribution. In response to the requirements of energy conservation and environmental protection, more and more enterprises collect the combustible gas generated for heating or power generation. For civil use, gas is also widely used as a convenient and clean fuel like natural gas. Therefore, gas holders are increasingly used in steel, coking and gas industries, and the volume of gas holders is also increasing, reaching 300000 m3 at present. The application of gas holder sealing oil is also developing, It has become one of the main industrial oils.
For dry gas holder, the correct selection of sealing oil is the key to ensure the safe and normal operation of the gas holder. Due to the different sources and components of gas, the impact on sealing oil is also different, and the local climate conditions are all factors that should be considered when selecting sealing oil.